Tabular State Forecast
Issued by NWS
Issued by NWS
290
FPUS63 KILX 150905
SFTIL
ILZ001>013-015>021-023>108-152200-
Tabular State Forecast for Illinois
National Weather Service Lincoln IL
405 AM CDT Sat Aug 15 2026
ROWS INCLUDE...
Daily predominant daytime weather 6AM-6PM
Forecast temperatures...early morning low/daytime high
Probability of precipitation nighttime 6PM-6AM/daytime 6AM-6PM
- indicates temperatures below zero
MM indicates missing data
FCST FCST FCST FCST FCST FCST FCST
Today Sun Mon Tue Wed Thu Fri
Aug 15 Aug 16 Aug 17 Aug 18 Aug 19 Aug 20 Aug 21
...Northwest IL...
Moline/Rock Island
Tstrms Ptcldy Sunny Ptcldy Shwrs Ptcldy Ptcldy
/84 72/85 65/82 64/83 68/79 61/75 59/76
/80 60/30 10/00 00/10 70/70 10/10 10/10
Sterling/Rock Falls
Tstrms Ptcldy Sunny Ptcldy Tstrms Ptcldy Ptcldy
/83 71/85 63/81 61/82 66/79 58/75 57/76
/70 50/40 10/00 00/10 80/80 20/10 10/10
...North central IL...
DeKalb
Tstrms Mocldy Sunny Ptcldy Tstrms Ptcldy Ptcldy
/81 71/82 63/79 61/80 66/77 57/73 55/74
/80 40/30 00/00 00/10 70/70 20/10 10/20
Rockford
Tstrms Mocldy Sunny Ptcldy Tstrms Ptcldy Ptcldy
/82 71/83 62/80 61/81 65/78 57/74 56/74
/60 40/20 00/00 00/20 80/80 20/10 10/20
...Northeast IL...
Aurora
Tstrms Mocldy Sunny Ptcldy Tstrms Ptcldy Ptcldy
/81 72/83 65/80 62/80 67/78 59/74 57/74
/90 40/40 00/00 00/10 70/70 20/10 20/10
Chicago Downtown
Tstrms Mocldy Sunny Ptcldy Tstrms Ptcldy Ptcldy
/81 73/84 69/77 66/82 69/78 64/73 63/74
/90 40/40 10/00 00/00 60/60 20/10 20/10
Chicago O`Hare
Tstrms Mocldy Sunny Ptcldy Tstrms Ptcldy Ptcldy
/81 73/84 67/80 65/82 68/79 62/74 59/75
/90 40/40 10/00 00/10 70/70 20/10 10/10
Joliet
Tstrms Mocldy Sunny Ptcldy Shwrs Ptcldy Ptcldy
/82 72/84 66/81 63/81 68/80 61/75 58/75
/100 40/40 10/00 00/00 60/60 30/10 20/10
Kankakee
Tstrms Mocldy Sunny Ptcldy Tstrms Ptcldy Ptcldy
/83 72/85 66/81 62/82 67/80 60/75 56/75
/100 40/40 10/00 00/00 50/50 30/10 10/10
Waukegan
Tstrms Mocldy Sunny Ptcldy Tstrms Ptcldy Ptcldy
/77 71/84 66/77 63/81 66/76 59/71 58/73
/70 40/40 00/00 00/10 70/70 20/10 10/10
...West central IL...
Jerseyville
Mocldy Ptcldy Sunny Sunny Ptcldy Ptcldy Ptcldy
/90 75/91 69/84 64/88 71/88 65/80 61/80
/30 20/20 30/10 00/00 30/30 20/20 20/20
Macomb
Tstrms Ptcldy Sunny Sunny Tstrms Ptcldy Ptcldy
/86 72/84 65/81 63/84 69/81 61/76 59/77
/100 70/40 10/00 00/00 60/60 10/10 10/10
Quincy
Tstrms Ptcldy Sunny Sunny Shwrs Ptcldy Ptcldy
/87 75/88 68/84 67/88 73/85 65/79 63/80
/50 50/40 10/00 00/00 60/60 10/10 20/20
...Central IL...
Decatur
Tstrms Ptcldy Sunny Sunny Tstrms Ptcldy Ptcldy
/86 74/86 68/83 63/84 69/85 63/78 59/78
/90 30/30 20/10 00/00 50/50 20/10 10/10
LaSalle/Peru
Tstrms Mocldy Sunny Ptcldy Tstrms Ptcldy Ptcldy
/83 73/84 65/81 63/82 69/80 60/75 58/76
/100 40/40 10/00 00/10 60/60 20/10 10/10
Peoria
Tstrms Tstrms Sunny Ptcldy Tstrms Ptcldy Ptcldy
/85 74/86 68/83 65/84 70/83 63/77 60/77
/100 60/50 10/00 00/00 60/60 20/10 10/10
Pontiac
Tstrms Mocldy Sunny Ptcldy Tstrms Ptcldy Ptcldy
/84 73/85 66/82 62/83 68/82 60/76 57/76
/100 40/40 10/00 00/00 50/50 30/10 10/10
Springfield
Tstrms Ptcldy Sunny Sunny Tstrms Ptcldy Ptcldy
/89 75/88 69/84 64/86 71/86 64/79 60/79
/100 30/30 10/10 00/00 50/50 10/10 10/20
...East central IL...
Champaign/Urbana
Tstrms Ptcldy Sunny Sunny Ptcldy Ptcldy Ptcldy
/83 73/86 68/82 63/83 68/84 62/77 58/77
/100 40/40 20/10 00/00 40/40 20/10 10/10
Charleston/Mattoon
Tstrms Ptcldy Ptcldy Sunny Ptcldy Ptcldy Ptcldy
/88 74/89 69/83 63/85 68/86 64/79 59/79
/50 30/20 20/10 00/00 40/40 20/20 10/20
...Southwest IL...
Belleville
Ptcldy Ptcldy Ptcldy Sunny Ptcldy Ptcldy Ptcldy
/95 77/96 73/86 68/90 74/92 69/83 64/83
/20 00/10 30/20 00/00 20/20 20/20 20/20
Chester
Sunny Ptcldy Ptcldy Sunny Ptcldy Ptcldy Ptcldy
/97 74/97 71/86 66/89 71/93 68/83 63/82
/00 00/10 50/30 10/10 10/20 30/30 30/30
...South central IL...
Carbondale
Sunny Ptcldy Ptcldy Sunny Ptcldy Ptcldy Ptcldy
/97 77/98 73/89 68/91 72/95 70/86 65/84
/00 00/10 40/20 10/10 00/20 30/30 30/30
Centralia
Ptcldy Ptcldy Ptcldy Sunny Ptcldy Ptcldy Ptcldy
/94 76/94 72/86 66/88 71/91 68/82 62/81
/20 10/10 30/20 10/00 20/20 30/30 30/30
Mount Vernon
Ptcldy Ptcldy Ptcldy Sunny Ptcldy Ptcldy Ptcldy
/96 76/96 72/88 66/89 71/93 67/84 62/83
/10 00/10 40/30 10/00 10/20 20/20 30/30
...Southeast IL...
Lawrenceville
Ptcldy Ptcldy Ptcldy Sunny Ptcldy Ptcldy Ptcldy
/93 76/94 72/86 66/86 69/90 67/83 61/81
/20 10/10 40/20 10/00 10/30 30/30 20/20
$$